In quic, coalesce packet of higher encryption level with initial or handshake retransmission. protected by gfe2_reloadable_flag_quic_coalesced_packet_of_higher_space.
The goal of this change is to mitigate inflated RTT sample.
PiperOrigin-RevId: 321556627
Change-Id: I7fc8675bb0f05a48b6e81ed4aa9c04b42fb0690a
diff --git a/quic/core/quic_packet_creator.cc b/quic/core/quic_packet_creator.cc
index 066763a..131ef5e 100644
--- a/quic/core/quic_packet_creator.cc
+++ b/quic/core/quic_packet_creator.cc
@@ -203,6 +203,9 @@
// Please note: this would not guarantee to fit next packet if the size of
// packet header increases (e.g., encryption level changes).
QUIC_DLOG(INFO) << length << " is too small to fit packet header";
+ if (coalesced_packet_of_higher_space_) {
+ RemoveSoftMaxPacketLength();
+ }
return;
}
QUIC_DVLOG(1) << "Setting soft max packet length to: " << length;
@@ -2018,5 +2021,9 @@
return flusher_attached_;
}
+bool QuicPacketCreator::HasSoftMaxPacketLength() const {
+ return latched_hard_max_packet_length_ != 0;
+}
+
#undef ENDPOINT // undef for jumbo builds
} // namespace quic
